Biodas and related technical blog

For the DAS workshop this year and for general use we decided it would be a good idea to have a glossary/command summary showing examples of working commands that could be used on DAS servers and the registry. Before creating an all singing all dancing html page with this info I need a rough draft. I may as well make this available as i write it so people may find it useful. This is meant as an easy/quick reference summary only but for further details on the requests and responses that can be made please refer to http://www.biodas.org/documents/spec-1.6.html. Further examples can be found from http://www.dasregistry.org/listSources.jsp you can filter on commands by choosing from the dropdown capability menu at the top, lights next to each datasource represent the validity of each command or capability as determined by the Das Registry. Click on a light to see the request and response for that server in your browser.

Section 1) The DAS Registry commands:

The DAS registry responds to a few commands:

sources, coordinatesystem, knownCapabilities, lastModified, validate

Note: that das/ can usually be replaced by das1/ and you will get the same results.

Note: also recently it is now possible to use ; as a parameter seperator as well as the & I’m not sure what the behaviour is if you mix these so i’d recommend using one seperator or the other in commands sent to the registry

sources commands (get DAS sources that have been registered with the registry):
* Get the sources document for a single DAS source with the registry id DS-111 held in the registry http://www.dasregistry.org/das/DS_111

Due to the possibly large number of entry points for some servers as of 1.6 the rows parameter can be used to restrict this list to the first 10 rows (rows 1-10) currently as of writing I can’t find many servers that support this: